Cita APA (7th ed.)

Schumacher, E. (2002). Eric Schumacher. Pro Helvetia.

Cita Chicago (17th ed.)

Schumacher, Eric. Eric Schumacher. Zürich: Pro Helvetia, 2002.

Cita MLA (8th ed.)

Schumacher, Eric. Eric Schumacher. Pro Helvetia, 2002.